Battery housing and electronic cigarette, assembly method

ABSTRACT

A battery housing includes a first casing and a second casing. A side wall of the first casing is provided with a limiting groove along an axial direction of the first casing. A guiding rib is protrudingly provided on the outer wall of the first casing along the axial direction of the first casing. An inner wall of the second casing is protrudingly provided with a limiting protrusion corresponding to the limiting groove along an axial direction of the second casing. A side wall of the second casing is provided with a guiding groove corresponding to the guiding rib along the axial direction of the second casing. When the second casing is sleeved on the outside of the first casing, the limiting protrusion is engaged in the limiting groove, and the guiding rib is engaged in the guiding groove.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of International PatentApplication No. PCT/CN2019/120289, filed on Nov. 22, 2019, entitled“battery housing and electronic cigarette, and assembly method”, whichclaims priority to Chinese Patent Application No. 201811599014.4, filedon Dec. 26, 2018. All of the aforementioned patent applications arehereby incorporated by reference in their entireties.

TECHNICAL FIELD

The disclosure relates to the technical field of simulated smoking, andmore particularly, relates to a battery housing, an electroniccigarette, and an assembly method.

BACKGROUND

A portable electronic cigarette, commonly known as “small cigarette”,includes a cartridge and a power supply devices electrically connectedto the cartridge, wherein the power supply device includes a batteryhousing and a battery installed in the battery housing. Nowadays, thebattery housing used to install the battery is mostly an integrallyformed prismatic or cylindrical structure. After production of this typeof battery housing, it will inevitably be deformed duringtransportation, causing it unable to use, resulting in waste ofresources and increasing production costs.

SUMMARY

Based on the above, it is necessary to provide a battery housing thatcan prevent deformation.

It is also necessary to provide an electronic cigarette having thebattery housing.

It is even more necessary to provide an assembly method for a batteryhousing, adapted for the above-mentioned battery housing or electroniccigarette.

The technical solution adopted by the present disclosure to solve itstechnical problems is as follows.

A power supply device includes a first casing and a second casing,wherein:

a side wall of the first casing is provided with a limiting groove alongan axial direction of the first casing, the limiting groove penetratesthrough inner and outer walls and an end surface of the first casing, aguiding rib is protrudingly provided on the outer wall of the firstcasing along the axial direction of the first casing, and

an inner wall of the second casing is protrudingly provided with alimiting protrusion corresponding to the limiting groove along an axialdirection of the second casing, a side wall of the second casing isprovided with a guiding groove corresponding to the guiding rib alongthe axial direction of the second casing, the guiding groove penetratesthrough inner and outer side walls of the second casing and an endsurface of the second casing;

when the second casing is sleeved on the outside of the first casing,the limiting protrusion is engaged in the limiting groove, and theguiding rib is engaged in the guiding groove.

Further, there are two limiting grooves symmetrically arranged onopposite side walls of the first casing, there are two guide ribssymmetrically arranged on the opposite side walls of the first casing; asymmetry plane between the two limiting grooves is perpendicular to asymmetry plane between the two guiding ribs.

Further, a partition plate is provided inside the second casing, and thepartition plate extends along a radial direction of the second casing.

Further, a cavity is formed and enclosed by the first casing and thesecond casing, the partition plate divides the cavity into a receivingchamber and a receiving groove, and the receiving groove is locatedabove the receiving chamber.

Further, the first casing has a hollow cylindrical structure with anopening at the upper end thereof, the partition plate is disposed awayfrom a closed end of the first casing, so that the receiving chamberforms a closed structure; the second casing has a hollow cylindricalstructure with upper and lower ends being opened, so that an opening isformed at the upper end of the receiving groove.

Further, a mounting post is protrudingly provided on an upper endsurface of the partition plate, the mounting post is provided with asensing passage along an axial direction of the mounting post; an upperend of the sensing passage extends through an upper end surface of themounting post, a lower end of the sensing passage extends through alower end surface of the partition plate.

Further, the partition plate is further provided with a first electrodehole and a second electrode hole, the first electrode hole and thesecond electrode hole are symmetrically arranged with respect to thesensing passage.

Further, there are two limiting grooves symmetrically arranged on theside wall of the first casing, there are two guiding ribs symmetricallyarranged on the side wall of the first casing, a symmetry plane betweenthe two limiting grooves is perpendicular to a symmetry plane betweenthe two guiding ribs, and correspondingly, there are two limitingprotrusions and two guiding grooves.

An electronic cigarette includes a power supply device, wherein thepower supply device includes the battery housing of any one of theforegoing, the power supply device further includes a battery assembly,the battery assembly includes a battery installed in the batteryhousing.

Further, the electronic cigarette further includes a cartridge, a cavityis formed and enclosed by the first casing and the second casing, apartition plate is provided in the second casing, the partition platedivides the cavity into a receiving chamber for installing the batteryassembly and a receiving groove for installing the cartridge, thereceiving groove is located above the receiving chamber.

Further, a first electrode pole and a second electrode pole are mountedon the partition plate, the first electrode pole is electricallyconnected to one of the positive electrode and the negative electrode ofthe battery, the second electrode pole is electrically connected to theother of the positive electrode and the negative electrode of thebattery, the cartridge has a first electrode terminal and a secondelectrode terminal; when the cartridge and the power supply device arein a first connection state, the first electrode pole is in contact withand electrically connected to the first electrode terminal; when thecartridge and the power supply device are in a second connection state,the first electrode pole is in contact with and electrically connectedto the second electrode terminal.

Further, a retaining groove is provided in the side wall of the firstcasing, the battery assembly further includes a circuit board connectedto the battery, a retaining protrusion is protrudingly provided on thecircuit board, the retaining protrusion is engaged in the retaininggroove.

Further, the limiting groove has an upper open end and a lower closedend along the axial direction of the first casing, the retaining grooveis provided at the closed end of the limiting groove.

An assembly method for a battery housing, adapted for the batteryhousing described in any one of the foregoing and the electroniccigarette described in any one of the foregoing, including the followingsteps:

step 1: the first casing and the second casing are respectively clamped,so that the limiting protrusion is aligned with the limiting groove, andat the same time, the guiding rib is aligned with the guiding groove;

step 2: the second casing is sleeved on the outside of the first casing,so that the limiting protrusion is engaged in the limiting groove, andat the same time, the guiding rib is engaged in the guiding groove.

Further, the limiting protrusion extends along a longitudinal directionof the second casing, one end of the limiting protrusion is providedwith a partition plate; the partition plate extends along a radialdirection of the second casing, after the second casing is sleeved onthe outside of the first casing, the partition plate restricts an axialmovement of the first casing relative to the second casing, the limitingprotrusion restricts a radial movement of the first casing relative tothe second casing.

The beneficial effects of the present disclosure are:

In the battery housing or electronic cigarette provided by the presentdisclosure, the battery housing includes a first casing and a secondcasing mutually engaged with each other, the limiting groove on thefirst casing enables the first casing to have a certain elasticdeformation ability, the guiding sliding groove on the second casingenables the second casing to have a certain elastic deformation ability,which can prevent deformation during transportation, reduce resourcewaste, and save production cost.

BRIEF DESCRIPTION OF THE DRAWINGS

Exemplary embodiments of the present disclosure are described more fullyhereinafter with reference to the accompanying drawings.

FIG. 1 is a perspective view of the electronic cigarette of the presentdisclosure;

FIG. 2 is an exploded view of the electronic cigarette shown in FIG. 1;

FIG. 3 is a partially exploded view of the cartridge of the electroniccigarette shown in FIG. 2;

FIG. 4 is a partially exploded view of the cartridge of the electroniccigarette shown in FIG. 2 from another perspective;

FIG. 5 is a top view of the base of the cartridge shown in FIG. 4;

FIG. 6 is a bottom view of the base of the cartridge shown in FIG. 4;

FIG. 7 is a cross-sectional view of the cartridge of the electroniccigarette shown in FIG. 2;

FIG. 8 is a partially exploded view of the power supply device of theelectronic cigarette shown in FIG. 2;

FIG. 9 is a front view of the first casing of the power supply deviceshown in FIG. 8;

FIG. 10 is a bottom view of the first casing of the power supply deviceshown in FIG. 9;

FIG. is a cross-sectional view of the first casing of the power supplydevice shown in FIG. 8;

FIG. 12 is a schematic structural diagram of the second casing of thepower supply device shown in FIG. 8 from another perspective;

FIG. 13 is a bottom view of the second casing shown in FIG. 12;

FIG. 14 is a cross-sectional view of the second casing shown in FIG. 8;

FIG. 15 is a schematic structural diagram of the battery assembly of thepower supply device shown in FIG. 8;

FIG. 16 is a cross-sectional view of the electronic cigarette shown inFIG. 1.

In the drawings, the various components and reference numerals are asfollows.

cartridge 100 cartridge body 11 liquid storage chamber 110 vent tube 111liquid injection sealing plug 17 opening 112 latching groove 113 lockingprotrusion 115 sealing member 12 through hole 121 groove 122 atomizinghead 13 atomizing tube 131 atomizing chamber 130 liquid inlet 1312liquid guiding heating member 133 base 14 member 132 protrusion 141latching member 142 connecting barrel 143 first mounting second mountingfirst perforation 1431 groove 144 groove 145 second perforation sensingthrough air inlet 147 1432 hole 146 first air passage second air passagefirst pressing gap 148 gap 149 member 15 second pressing sleeve 18lifting rod 19 member 16 power supply battery housing 21 first casino211 device 200 limiting groove 2111 guiding rib 2112 receiving chamber2110 USB slot 2113 retaining groove 2114 second casing 212 limitingprotrusion guiding uroove 2122 receiving 2121 groove 2120 firstelectrode pole second electrode mounting post 2126 2124 pole 2125sensing passage 2127 locking groove 2128 battery assembly 22 circuitboard 221 retaining protrusion battery 222 2211 USB interface 223 sensor23

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The present disclosure will now be described in detail with reference tothe accompanying drawings. These drawings are simplified schematicdiagrams, which only illustrate the basic structure of the presentdisclosure in a schematic way, so it only shows the construction relatedto the present disclosure.

Please refer to FIGS. 1 and 2, the present disclosure provides anelectronic cigarette. The electronic cigarette includes a cartridge 100and a power supply device 200 electrically connected to the cartridge100. During operation, the power supply device 200 supplies power to thecartridge 100, so that the e-liquid stored in the cartridge 100 isatomized to generate smoke for the user to inhale.

Please refer to FIG. 3, FIG. 4 and FIG. 7, the cartridge 100 includes acartridge body 11 provided with a liquid storage chamber 110 therein, asealing member 12 used for sealing the liquid storage chamber 110, anatomizing head 13 mounted on the sealing member 12, a base 14 installedat one end of the cartridge body 11, and a first pressing member 15 anda second pressing member 16 mounted on the base 14.

The cartridge body 11 has generally a hollow cylindrical structure withan opening at the lower end thereof. The cartridge body 11 has a flatstructure serving as the contour of the cartridge 100, which caneffectively prevent the cartridge 100 from rolling and avoid thecartridge 100 from falling. The liquid storage chamber 110 is formed bythe inner cavity of the cartridge body 11, and the e-liquid is stored inthe liquid storage chamber 110. The cartridge body 11 is made of atransparent or translucent material, so that the user can observe theamount of the e-liquid in the liquid storage chamber 110 through thecartridge body 11, which is convenient for the user to inject liquid intime. In this embodiment, the cartridge body 11 is made of a transparentmaterial.

A vent tube 111 is formed at the center of the upper end surface of thecartridge body 11 and extends downward along the axial direction of thecartridge body 11. The vent tube 111 is a hollow tube with the upper andlower ends being opened, and the upper end of the vent tube 111 extendsthrough the upper end surface of the cartridge body 11. The upper endsurface of the cartridge body 11 is recessed downward to form a liquidinjection opening 112 in communication with the liquid storage chamber110, and the user can inject liquid into the liquid storage chamber 110through the liquid injection opening 112. In addition, a sealing plug 17is installed in the liquid injection opening 112 to prevent the e-liquidfrom leaking through the liquid injection opening 112. It can beunderstood that the material of the sealing plug 17 includes but is notlimited to silicone or rubber.

The sealing member 12 has a substantially cylindrical structure, and thesealing member 12 is received in the lower end of the cartridge body 11.Specifically, the liquid storage chamber 110 is formed by a spaceenclosed by the inner wall of the cartridge body 11 and the upper endsurface of the sealing member 12. A through hole 121 is provided at thecenter of the sealing member 12 along the axial direction of the sealingmember 12. The through hole 121 extends through the upper and lower endsurfaces of the sealing member 12. The atomizing head 13 is connected tothe through hole 121. The material of the sealing member 12 includes butis not limited to silicone or rubber, so as to improve the sealingperformance of the liquid storage chamber 110 and prevent the leakage ofthe e-liquid. In addition, the lower end surface of the sealing member12 is provided with two grooves 122, and the two grooves 122 aresymmetrically arranged on both sides of the through hole 121.

The atomizing head 13 includes an atomizing tube 131 provided with anatomizing chamber 130 therein and a heating structure (not labeled)received in the atomizing chamber 130. The heating structure has twopins, when the two pins are respectively connected to the positive andnegative poles of the power supply device 200, the heating structure cangenerate heat to atomize the e-liquid when the atomizing circuit istriggered to be conducted.

The atomizing tube 131 has substantially a hollow cylindrical structurewith both ends being opened. The atomizing chamber 130 is formed by theinner cavity of the atomizing tube 131. The lower end of the atomizingtube 131 is inserted into the through hole 121, the upper end of theatomizing tube 131 is received in the liquid storage chamber 110, andthe atomizing chamber 130 is in communication with the inner cavity ofthe vent tube 111. A liquid inlet 1312 is provided in the side wall ofthe atomizing tube 131. The liquid inlet 1312 communicates the liquidstorage chamber 110 with the atomizing chamber 130. In order to preventa large amount of the e-liquid in the liquid storage chamber 110 fromflooding into the atomizing chamber 130, causing the atomizing head 13to be drowned, a liquid guiding member 132 is provided in the atomizingchamber 130 corresponding to the liquid inlet 1312 to prevent thee-liquid in the liquid storage chamber 110 from excessively entering theatomizing chamber 130. In this embodiment, the heating structureincludes a liquid guiding member 132 and a heating member 133 that arein contact with each other. The liquid guiding member 132 is capable ofabsorbing the e-liquid. The heating member 133 generates heat afterbeing energized. The liquid guiding member 132 is attached to the innerwall of the atomizing tube 131 corresponding to the liquid inlet 1312 soas to absorb the e-liquid entering the atomizing chamber 130 through theliquid inlet 1312, and the heating member 133 is accommodated in theliquid guiding member 132. In this embodiment, the liquid guiding member132 is cotton, and the heating member 133 is a heating wire. It can beunderstood that, in other embodiments not shown, the liquid guidingmember 132 can also be sponge, fiber rope, porous ceramic, or porousgraphite, etc. The heating member 133 can also be a heating plate, aheating net, or a heating rod.

It can be understood that, in other embodiments not shown, the heatingstructure may also be a ceramic heating body. That is, the ceramicheating body has the ability to absorb the e-liquid, and also has theability to heat the e-liquid. It is also understood that the heatingstructure may also be an ultrasonic heating device or a heating tube,etc., which is not limited here.

In this embodiment, the cartridge 100 further includes a sleeve 18 and alifting rod 19. The sleeve 18 has a hollow cylindrical structure with anopening at the lower end thereof. The sleeve 18 is slidably sleeved onthe outside of the atomizing tube 131 along the axial direction of theatomizing head 13. The lifting rod 19 has a rod-shaped structure andslidably extends through the inside of the vent tube 111. The lower endof the lifting rod 19 is connected to the upper end of the sleeve 18.The upper end of the lifting rod 19 extends to the outside of thecartridge body 11. When the cartridge 100 leaves the factory, the sleeve18 is sleeved on the outside of the atomizing tube 131 corresponding tothe liquid inlet 1312 to close the liquid inlet 1312 to prevent thee-liquid in the liquid storage chamber 110 from entering the atomizinghead 13 through the liquid inlet 1312, so that the e-liquid is isolatedfrom the outside air to prevent the e-liquid from contacting with theair to be deteriorated due to the change in temperature and air pressureduring transportation, and it can further prevent the atomizing head 13from leaking due to excessive e-liquid entering thereinto. In use, thelifting rod 19 is pulled upwards by the user, the sleeve 18 is driven bythe lifting rod 19 to move upward together to open the liquid inlet1312, so that the liquid storage chamber 110 is in communication withthe atomizing chamber 130 through the liquid inlet 1312. When thepulling rod 19 continues to be pulled upward until the upper end surfaceof the sleeve 18 resists against the lower end surface of the vent tube111, the lifting rod 19 can be separated from the sleeve 18 and can bedrawn out from the vent tube 111. At this time, the atomizing chamber130 is in communication with the inner cavity of the vent tube 111through the sleeve 18. It can be understood that, the sleeve 18 is madeof silicone or rubber material, in order to facilitate the sealing ofthe liquid inlet 1312 when the cartridge 100 leaves the factory, and tofacilitate the deformation of the sleeve 18 to separate it from thelifting rod 19. In this embodiment, the sleeve 18 and the pulling rod 19are integrally formed, and the junction of the sleeve 18 and the pullingrod 19 is pulled apart so that the sleeve 18 is separated from thepulling rod 19.

The base 14 is covered on the lower end of the cartridge body 11 and islocated outside the liquid storage chamber 110. The upper end surface ofthe base 14 is provided with protrusions 141 corresponding to thegrooves 122. When the sealing member 12 and the base 14 are installed inplace, the protrusions 141 and the grooves 122 are engaged with eachother correspondingly, so that the base 14 and the sealing member 12 arerelatively fixed. In addition, a latching member 142 is protrudinglyprovided on the outer wall of the base 14. A latching groove 113 isprovided in the side wall of the cartridge body 11 corresponding to thelatching member 142. The latching member 142 and the latching groove 113are engaged with each other, so as to achieve a fixed connectionrelationship between the base 14 and the cartridge body 11. It can beunderstood that, in other embodiments not shown, the base 14 and thecartridge body 11 may also be detachably connected by plugging, threadedconnection, or magnetic connection. In other embodiments not shown, thepositions of the latching member 142 and the latching groove 113 can beinterchanged.

Please refer to FIG. 5 and FIG. 6 at the same time, a hollow connectingbarrel 143 extends upward along the axial direction of the base 14 fromthe center of the upper end surface of the base 14. The connectingbarrel 143 is inserted into the lower end of the atomizing tube 131 andcommunicates with the atomizing chamber 130. A first mounting groove 144and a second mounting groove 145 are formed by recessing upward from thelower end surface of the base 14. The first pressing member 15 isinstalled in the first mounting groove 144, and the second pressingmember 16 is installed in the second mounting groove 145. The connectingbarrel 143 is also provided with a first perforation 1431 and a secondperforation 1432. One end of the first perforation 1431 extends throughthe upper end surface of the connecting barrel 143, and the other end ofthe first through hole 1431 is in communication with the first mountinggroove 144. One end of the second perforation 1432 extends through theupper end surface of the connecting barrel 143, and the other end of thesecond through hole 1432 is in communication with the second mountinggroove 145. In this embodiment, one pin of the heating member 133 passesthrough the first perforation 1431 and then extends into the firstmounting groove 144, and is pressed by the first pressing member 15 andfixed on the groove wall of the first mounting groove 144; the other pinof the heating member 133 passes through the second perforation 1432 andthen extends into the second mounting groove 145, and is pressed by thesecond pressing member 16 and fixed on the groove wall of the secondmounting groove 145. The first pressing member 15 and the secondpressing member 16 are both electrical conductors; thus, the function ofelectrically connecting the two pins of the heating member 133 with thefirst pressing member 15 and the second pressing member 16 is realized,and at the same time, it also realizes the fixing function of theheating member 133. It can be understood that, both the first pressingmember 15 and the second pressing member 16 are made of conductivematerials such as stainless steel or copper. In order to achieveelectrical isolation and avoid short circuits, the base 14 is made of aninsulating material. In this embodiment, the base 14 is made of plastic.The first pressing member 15 constitutes a first electrode terminal ofthe cartridge 100, and the second pressing member 16 constitutes asecond electrode terminal of the cartridge 100.

When the user needs to disassemble or replace the heating member 133, itonly needs to remove the first pressing member 15 and the secondpressing member 16 to release the pressing action to the heating member133, so that the heating member 133 can be easily removed. The operationis simple and convenient, and the user experience is improved.

In addition, the lower end surface of the base 14 is provided with asensing through hole 146 and an air inlet 147 along the axial directionof the base 14. The sensing through hole 146 and the air inlet 147 areboth in communication with the atomizing chamber 130 through the innercavity of the connecting barrel 143. In this embodiment, there is onesensing through hole 146 located at the center of the base 14, and thereare two air inlets 147 symmetrically arranged on both sides of thesensing through hole 146. The symmetrical arrangement of the air inlets147 ensures that the external air can evenly enter the atomizing chamber130. In addition, referring to FIG. 7, the first mounting groove 144 andthe second mounting groove 145 are symmetrically arranged on both sidesof the sensing through hole 146. When the cartridge 100 is installedonto the power supply device 200, there is no need to consider thepositive and negative polarities, so that the effect that the cartridge100 can be inserted from front side or back side is realized.

Referring to FIG. 8, the power supply device 200 includes a batteryhousing 21, and a battery assembly 22 and a sensor 23 mounted on thebattery housing 21.

The battery housing 21 includes a first casing 211 and a second casing212 sleeved outside the first casing 211. Please refer to FIG. 9 andFIG. 10, the first casing 211 has generally a hollow cylindricalstructure with an opening at the upper end. A limiting groove 2111 isprovided on the side wall of the first casing 211 along the axialdirection of the first casing 21. The limiting groove 2111 penetratesthrough the inner and outer walls and the upper end surface of the firstcasing 211. A guiding rib 2112 is protrudingly provided on the outerwall of the first casing 211 along the axial direction of the firstcasing 211. Please refer to FIG. 12 and FIG. 13, the second casing 212has substantially a hollow cylindrical structure with upper and lowerends being opened. The inner wall of the second casing 212 is providedwith a limiting protrusion 2121 corresponding to the limiting groove2111 along the axial direction of the second casing 212. The side wallof the second casing 212 is provided with a guiding groove 2122corresponding to the guiding rib 2112 along the axial direction of thesecond casing 212. The guiding groove 2122 penetrates through the innerand outer walls and the lower end surface of the second casing 212.

When the first casing 211 and the second casing 212 are separated fromeach other, due to the action of the limiting groove 2111 on the firstcasing 211, the parts of the first casing 211 located on both sides ofthe limiting groove 2111 have a certain degree of elastic deformationability, which allows the parts of the first casing 211 on both sides ofthe limiting groove 2111 to be deformed to a certain extent. Similarly,due to the action of the guiding groove 2122 on the second casing 212,the parts of the second casing 212 located on both sides of the guidinggroove 2122 have a certain elastic deformation ability, which allows theparts of the second casing 212 on both sides of the guiding groove 2122to be deformed to a certain extent. The two casings are engaged witheach other through the limiting groove 2111 and the limiting protrusion2121, so that the deformation of the first casing 211 and the secondcasing 212 can be controlled, and further deformation duringtransportation is prevented. In this embodiment, the first casing 211and the second casing 212 are both plastic parts, the mold is easy toform, and the production efficiency is high.

When the first casing 211 and the second casing 212 are connected, thesecond casing 212 is sleeved on the outside of the first casing 211, sothat the limiting protrusion 2121 is engaged in the limiting groove2111, and the guiding rib 2112 is engaged in the guiding groove 2122. Atthis time, the limiting protrusion 2121 occupies the space of thelimiting groove 2111, and the guiding rib 2112 occupies the space of theguiding groove 2122. Thus, the first casing 211 and the second casing212 are fixedly connected, and the space of the limiting groove 2111 ofthe first casing 211 is occupied by the limiting protrusion 2121,thereby restricting the deformation of the first casing 211 along thefront and rear sides of the limiting groove 2111 (i.e., the surfacewhere the guiding rib 2112 is located). The space of the guiding groove2122 of the second casing 212 is occupied by the guiding rib 2112,thereby restricting the deformation of the second casing 212 along theleft and right sides of the guiding groove 2122 (i.e., the surface wherethe guiding rib 2112 is located). In addition, the outer surface of thesecond casing 212 and the outer surface of the guiding rib 2112 are onthe same surface, so that the battery housing 21 has a consistent outercontour, and the aesthetics of the battery housing 21 is improved.

The present disclosure also provides an assembly method of the batteryhousing, which includes the following steps:

Step 1: the first casing 211 and the second casing 212 are respectivelyclamped, so that the limiting protrusion 2121 is aligned with thelimiting groove 2111, and at the same time, the guiding rib 2112 isaligned with the guiding groove 2122.

Step 2: the second casing 212 is sleeved on the outside of the firstcasing 211, so that the limiting protrusion 2121 is engaged in thelimiting groove 2111, and at the same time, the guiding rib 2112 isengaged in the guiding groove 2122.

Further, the limiting protrusion 2121 extends along the longitudinalaxis of the second casing 212. A partition plate 2123 is provided at oneend of the limiting protrusion 2121, the partition plate 2123 isarranged along the radial direction of the second casing 212. After thesecond casing 212 is sleeved on the outside of the first casing 211, thepartition plate 2123 restricts the axial movement of the first casing211 relative to the second casing 212, the limiting protrusion 2121restricts the radial movement of the first casing 211 relative to thesecond casing 212.

In this embodiment, the cross-sectional shape of the limiting groove2111 is generally trapezoidal. Correspondingly, the cross-sectionalshape of the limiting protrusion 2121 is also trapezoidal, therebyfurther preventing relative movement between the first casing 211 andthe second casing 212 in the radial direction of the electroniccigarette, so that the connection stability between the first casing 211and the second casing 212 is improved.

In this embodiment, there are two limiting grooves 2111 symmetricallyarranged on the side wall of the first casing 212. There are two guidingribs 2112 symmetrically arranged on the side wall of the first casing212. The symmetry plane between the two limiting grooves 2111 isperpendicular to the symmetry plane between the two guiding ribs 2112.Correspondingly, there are two limiting protrusions 2121 and two guidinggrooves 2122. It can be understood that, in other embodiments not shown,the number of the limiting groove 2111 and the guiding rib 2112 can alsobe three, four or more, which is not limited here.

Referring to FIG. 15, the battery assembly 22 includes a circuit board221, a battery 222 connected to one end of the circuit board 221, and aUSB interface 223 connected to the other end of the circuit board 221opposite to the battery 222. The user can charge the battery 222 throughthe USB interface 223.

Please refer to FIG. 8, FIG. 11, FIG. 14, and FIG. 16, a cavity (notlabeled) is formed and enclosed by the first casing 211 and the secondcasing 212. A partition plate 2123 is provided inside the second casing212 along the radial direction of the second casing 212. The partitionplate 2123 divides the cavity into a receiving chamber 2110 forinstalling the battery assembly 22 and a receiving groove 2120 (see FIG.2) for installing the cartridge 100. The receiving groove 2120 islocated above the receiving chamber 2110. Specifically, the partitionplate 2123 is located away from the closed end of the first casing 211,so that the receiving chamber 2110 forms a closed structure, and theupper end of the receiving groove 2120 forms an opening. In thisembodiment, the partition plate 2123 and the second casing 212 areintegrally formed. It can be understood that, in other embodiments notshown, the partition plate 2123 and the second casing 212 may also beseparate parts, in use, the two are only needed to be fixedly connected,for example, by hot-melt connection or welding.

One end of the first casing 211 away from the cartridge 100 is providedwith a USB slot 2113 that matches with the USB interface 223. Tworetaining grooves 2114 in communication with the receiving chamber 2110are oppositely provided in the side wall of the first casing 211. Inthis embodiment, the retaining groove 2114 penetrates through the innerand outer walls of the first casing 211. Two retaining protrusions 2211are protrudingly provided on opposite ends of the circuit board 221,each retaining protrusion 2211 is engaged in a corresponding retaininggroove 2114. The symmetry plane between the two retaining protrusions2211 is perpendicular to the symmetry plane between the USB interface223 and the battery 222. The retaining protrusion 2211 is made of anelastic material, so that the retaining protrusion 2211 can be deformedwhen exerted by an external force. When the external force exerted onthe retaining protrusion 2211 is removed, the retaining protrusion 2211can be restored. In this embodiment, the retaining protrusion 2211 ismade of plastic. It can be understood that, in other embodiments notshown, the retaining protrusion 2211 may also be an elastic member suchas a stainless steel spring sheet. There are at least two retainingprotrusions 2211.

When installing the battery assembly 22, the end of the battery assembly22 with the USB interface 223 is firstly adjusted to face the USB slot2113, then the battery assembly 22 is gradually inserted into thereceiving chamber 2110 along the axial direction of the power supplydevice 200, the retaining protrusions 2211 are elastically deformed dueto being squeezed by the opposite inner walls of the receiving chamber2110, and abut against and slide along the inner walls of the receivingchamber 2110. The retaining groove 2114 is provided on the sliding pathof the retaining protrusion 2211. When the battery assembly 22 moves tothe position in which the retaining protrusion 2211 is in alignment withthe retaining groove 2114, the retaining protrusion 2211 is resorted andengaged into the retaining groove 2114; at the same time, the USBinterface 223 is inserted into the USB slot 2113 along the slidingdirection of the retaining protrusion 2211. In this way, the retainingprotrusion 2211 and the retaining groove 2114 are engaged with eachother to restrict the movement of the circuit board 221 along the axialdirection of the power supply device 200. In addition, the USB interface223 is inserted into the USB slot 2113 to restrict the movement of thecircuit board 221 along the radial direction of the power supply device200, thereby realizing the fixing of the circuit board 221 in thebattery housing 21. The operation is simple and fast, convenient forusers to assemble, and it is easy to produce. It can be understood that,in other embodiments not shown, the retaining groove 2114 may notpenetrate through the outer wall of the first casing 211, and it onlyneeds to satisfy that the retaining groove 2114 is recessed from theinner wall of the receiving chamber 2110.

The present disclosure also provides an assembly method of the powersupply device, which includes the following steps:

Step 1: the battery housing 21 and the battery assembly 22 arerespectively clamped, and the end of the battery assembly 22 with theUSB interface 223 is adjusted to face the USB slot 2113;

Step 2: the battery assembly 22 is gradually inserted into the receivingchamber 2110 along the axial direction of the power supply device 200,the retaining protrusion 2211 abuts against and slides along the innerwall of the receiving chamber 2110, until the retaining protrusion 2211is engaged into the retaining groove 2114, and the USB interface 223 isinserted into the USB slot 2113.

Further, the retaining groove 2114 is provided in the side wall of thebattery housing 21, the USB slot 2113 is provided at one end of thelongitudinal direction of the battery housing 21, the USB slot 2113restricts the battery assembly 22 from moving along the longitudinaldirection of the battery housing 21, and the retaining groove 2114restricts the battery assembly 22 from moving along the radial directionof the battery housing 21.

A first electrode pole 2124 and a second electrode pole 2125 arerespectively penetrated through the partition plate 2123, the lower endof the first electrode pole 2124 and the lower end of the secondelectrode pole 2125 both extend into the receiving chamber 2110. Thelower end of the first electrode pole 2124 is electrically connected toone of the positive electrode and the negative electrode of the battery222, and the lower end of the second electrode pole 2125 is electricallyconnected to the other of the positive electrode and the negativeelectrode of the battery 222. The upper end of the first electrode pole2124 and the upper end of the second electrode pole 2125 both extendinto the receiving groove 2120. When the cartridge 100 is installed inthe receiving groove 2120, the first electrode pole 2124 is in contactwith and electrically connected to the first pressing member 15, and thesecond electrode pole 2125 is in contact with and electrically connectedto the second pressing member 16. Thus, the electrical connectionbetween the heating structure and the battery 222 is realized.

A mounting post 2126 is protrudingly provided on the upper end surfaceof the partition plate 2123, the mounting post 2126 is provided with asensing passage 2127 along the axial direction of the mounting post2126. The upper end of the sensing passage 2127 extends through theupper end surface of the mounting post 2126, the lower end of thesensing passage 2127 extends through the lower end surface of thepartition plate 2123. The partition plate 2123 is further provided witha first electrode hole (not labeled) and a second electrode hole (notlabeled) that are symmetrically arranged about the sensing passage 2127,wherein the first electrode pole 2124 is installed in the firstelectrode hole, and the second electrode pole 2125 is installed in thesecond electrode hole. The first electrode terminal is arrangedcorresponding to one of the first electrode pole 2124 and the secondelectrode pole 2125, the second electrode terminal is arrangedcorresponding to the other of the first electrode pole 2124 and thesecond electrode pole 2125. When the cartridge 100 and the power supplydevice 200 are in a first connection state, the first electrode pole2124 is in contact with and electrically connected to the firstelectrode terminal; when the cartridge 100 and the power supply device200 are in a second connection state, the first electrode pole 2124 isin contact with and electrically connected to the second electrodeterminal. In this embodiment, the transition from the first connectionstate to the second connection state is obtained by rotating the powersupply device 200 relative to the cartridge 100 by 180°, therebyachieving the purpose of electrical conduction for both front insertionand back insertion.

The circuit board 221 is electrically connected to the battery 222 andthe sensor 23. In this embodiment, the sensor 23 is installed at thelower end of the partition plate 2123 to close the sensing passage 2127.The sensing end of the sensor 23 is connected to the sensing passage2127. When the cartridge 100 and the battery housing 21 are installed inplace, the mounting post 2126 is at least partially inserted into thebase 14, and the sensing passage 2127 is in communication with thesensing through hole 146. In this embodiment, the mounting post 2126 hasa truncated cone structure. When the excessive e-liquid or waterdroplets formed after the condensation of the smoke in the atomizingchamber 130 flows down through the sensing through hole 146 to contactthe mounting post 2126, the e-liquid or water droplets can flow alongthe slope of the mounting post 2126 to the circumference of the mountingpost 2126, so as to prevent the liquid from entering the sensing passage2127 causing damage to the sensor 23 or blocking the sensing passage2127.

In this embodiment, the sensor 23 is a pressure sensor. When the usersucks, a negative pressure is generated in the sensing passage 2127 dueto the suction effect, the sensor 23 senses the air pressure change inthe sensing passage 2127 and transmits the air pressure change signal tothe circuit board 221. After receiving the signal, the circuit board 221controls the battery 222 to supply power to the heating structure,thereby heating the e-liquid, so that the e-liquid generates smoke underthe heating action, thereby realizing automatic control. It can beunderstood that, in other embodiments not shown, the sensor 23 may alsobe an airflow sensor that communicates with the external atmosphere andthe sensing passage 2127; at this time, when the user sucks, the circuitboard 221 controls the battery 222 to supply power to the heatingstructure after receiving the airflow change signal from the airflowsensor.

In order to improve the stability of the connection between thecartridge 100 and the power supply device 200, the outer wall of thecartridge body 11 is provided with locking protrusions 115 disposedoppositely, the side wall of the second casing 212 is provided withlocking grooves 2128 corresponding to the locking protrusions 115. Whenthe cartridge body 11 and the second casing 212 are installed in place,the locking protrusions 115 and the locking grooves 2128 are engagedwith each other. In addition, a first air passage gap 148 incommunication with the air inlet 147 is formed between the lower endsurface of the base 14 and the upper end surface of the partition plate2123, a second air passage gap 149 is formed between the outer wall ofthe cartridge body 11 and the inner wall of the second casing 212, thesecond air passage gap 149 is in communication with the outsideatmosphere and the first air passage gap 148. When the user sucks, theexternal air enters the atomizing chamber 130 through the second airpassage gap 149, the first air passage gap 148, the air inlet 147 andthe inner cavity of the connecting barrel 143 in sequence, and is mixedwith the smoke, the mixed smoke enters the user's mouth through theinner cavity of the vent tube 111, wherein the second air passage gap149, the first air passage gap 148, the air inlet 147 and the innercavity of the connecting barrel 143 together constitute an air inletpassage (not labeled), and the inner cavity of the vent tube 111constitutes a smoke outlet passage (not labeled).

In the electronic cigarette of the present disclosure, the two pins ofthe heating structure are respectively pressed and fixed by the firstpressing member 15 and the second pressing member 16, which isconvenient for users to replace the heating structure. The operation issimple and convenient, and the connection stability is strong, therebyimproving the user experience. In addition, the battery housing 21includes a first casing 211 and a second casing 212 mutually engagedwith each other, the limiting groove 2111 on the first casing 211enables the first casing 211 to have a certain elastic deformationability, the guiding groove 2122 on the second casing 212 enables thesecond casing 212 to have a certain elastic deformation ability, whichcan prevent deformation during transportation, reduce resource waste,and save production cost. In addition, when the battery assembly 22 isslidably installed, the retaining protrusion 2211 is engaged with theretaining groove 2114, and at the same time, the USB interface 223 isinserted into the USB slot 2113, to realize the fixing between thecircuit board 221 and the battery housing 21. The operation is simple,fast, easy for users to assemble, and it is easy to produce.

The above embodiments merely represent several implementations of thepresent application, and the descriptions thereof are more specific anddetailed, but they shall not be understood as a limitation on the scopeof the present application. It should be noted that, for those ofordinary skill in the art, variations and improvements may still be madewithout departing from the concept of the present application, and allof which shall fall into the protection scope of the presentapplication. Therefore, the scope of protection of the presentapplication shall be subject to the appended claims.

What is claimed is:
 1. A battery housing comprising a first casing and asecond casing, wherein: a side wall of the first casing is provided witha limiting groove along an axial direction of the first casing, thelimiting groove penetrates through inner and outer walls and an endsurface of the first casing, a guiding rib is protrudingly provided onthe outer wall of the first casing along the axial direction of thefirst casing; and an inner wall of the second casing is protrudinglyprovided with a limiting protrusion corresponding to the limiting groovealong an axial direction of the second casing, a side wall of the secondcasing is provided with a guiding groove corresponding to the guidingrib along the axial direction of the second casing, the guiding groovepenetrates through inner and outer side walls of the second casing andan end surface of the second casing; when the second casing is sleevedon the outside of the first casing, the limiting protrusion is engagedin the limiting groove, and the guiding rib is engaged in the guidinggroove.
 2. The battery housing according to claim 1, wherein there aretwo limiting grooves symmetrically arranged on opposite side walls ofthe first casing, there are two guide ribs symmetrically arranged on theopposite side walls of the first casing; a symmetry plane between thetwo limiting grooves is perpendicular to a symmetry plane between thetwo guiding ribs.
 3. The battery housing according to claim 1, wherein apartition plate is provided inside the second casing, and the partitionplate extends along a radial direction of the second casing.
 4. Thebattery housing according to claim 3, wherein a cavity is formed andenclosed by the first casing and the second casing, the partition platedivides the cavity into a receiving chamber and a receiving groove, andthe receiving groove is located above the receiving chamber.
 5. Thebattery housing according to claim 4, wherein the first casing has ahollow cylindrical structure with an opening at the upper end thereof,the partition plate is disposed away from a closed end of the firstcasing, so that the receiving chamber forms a closed structure; thesecond casing has a hollow cylindrical structure with upper and lowerends being opened, so that an opening is formed at the upper end of thereceiving groove.
 6. The battery housing according to claim 5, wherein amounting post is protrudingly provided on an upper end surface of thepartition plate, the mounting post is provided with a sensing passagealong an axial direction of the mounting post; an upper end of thesensing passage extends through an upper end surface of the mountingpost, a lower end of the sensing passage extends through a lower endsurface of the partition plate.
 7. The battery housing according toclaim 6, wherein the partition plate is further provided with a firstelectrode hole and a second electrode hole, the first electrode hole andthe second electrode hole are symmetrically arranged with respect to thesensing passage.
 8. The battery housing according to claim 1, whereinthere are two limiting grooves symmetrically arranged on the side wallof the first casing, there are two guiding ribs symmetrically arrangedon the side wall of the first casing, a symmetry plane between the twolimiting grooves is perpendicular to a symmetry plane between the twoguiding ribs, and correspondingly, there are two limiting protrusionsand two guiding grooves.
 9. An electronic cigarette comprising a powersupply device, wherein the power supply device comprises the batteryhousing according to claim 1, the power supply device further comprisesa battery assembly, and the battery assembly comprises a batteryinstalled in the battery housing.
 10. The electronic cigarette accordingto claim 9, wherein the electronic cigarette further comprises acartridge, a cavity is formed and enclosed by the first casing and thesecond casing, a partition plate is provided in the second casing, thepartition plate divides the cavity into a receiving chamber forinstalling the battery assembly and a receiving groove for installingthe cartridge, the receiving groove is located above the receivingchamber.
 11. The electronic cigarette according to claim 10, wherein afirst electrode pole and a second electrode pole are mounted on thepartition plate, the first electrode pole is electrically connected toone of the positive electrode and the negative electrode of the battery,the second electrode pole is electrically connected to the other of thepositive electrode and the negative electrode of the battery, thecartridge has a first electrode terminal and a second electrodeterminal; when the cartridge and the power supply device are in a firstconnection state, the first electrode pole is in contact with andelectrically connected to the first electrode terminal; when thecartridge and the power supply device are in a second connection state,the first electrode pole is in contact with and electrically connectedto the second electrode terminal.
 12. The electronic cigarette accordingto claim 9, wherein a retaining groove is provided in the side wall ofthe first casing, the battery assembly further comprises a circuit boardconnected to the battery, a retaining protrusion is protrudinglyprovided on the circuit board, the retaining protrusion is engaged inthe retaining groove.
 13. The electronic cigarette according to claim12, wherein the limiting groove has an upper open end and a lower closedend along the axial direction of the first casing, the retaining grooveis provided at the closed end of the limiting groove.
 14. An assemblymethod for a battery housing, adapted for the battery housing accordingto claim 1 and the electronic cigarette according to claim 9, theassembly method comprising the following steps: step 1: the first casingand the second casing are respectively clamped, so that the limitingprotrusion is aligned with the limiting groove, and at the same time,the guiding rib is aligned with the guiding groove, step 2: the secondcasing is sleeved on the outside of the first casing, so that thelimiting protrusion is engaged in the limiting groove, and at the sametime, the guiding rib is engaged in the guiding groove.
 15. The assemblymethod for a battery housing according to claim 14, wherein the limitingprotrusion extends along a longitudinal direction of the second casing,one end of the limiting protrusion is provided with a partition plate;the partition plate extends along a radial direction of the secondcasing; after the second casing is sleeved on the outside of the firstcasing, the partition plate restricts an axial movement of the firstcasing relative to the second casing, the limiting protrusion restrictsa radial movement of the first casing relative to the second casing.